What is the length? After all it is a...

According to Amazon, the dimensions are 42 x 2 x 1 inches, with a weight of 3.8 ounces. However, that seems a bit long for the Medium size that was listed.... So, after trawling the WWW a bit more, I found a website by the URL of leftlanesports.com , and their specs listed for the belt are much more plausible: S: 27-31" M: 30 - 34" L: 33 - 37" XL: 36 -40"

Even though LLS lists every size as being sold out, I will include the link {http://www.leftlanesports.com/Product.aspx?l=00050254000000000000&p=ARM01293} just so you can see it for yourself.